Title :
Capacity of wideband TDMA digital mobile radio cellular schemes
Author_Institution :
University of Leeds, Department of Electrical & Electronic Engineering, Leeds, UK
Abstract :
Wideband TDMA digital cellular mobile radio schemes can offer a capacity similar to that of analogue modulation schemes. To find the optimum coding to be used a balance must be made between bandwidth, power and number of channels. A comparison is made for an idealised system using QPSK transmission and biorthogonal coding. Coding with a bandwidth expansion of 2.7 is shown to provide a good capacity at low carrier/noise ratio and an acceptable error rate.
Keywords :
cellular radio; digital communication systems; phase shift keying; time division multiplexing; QPSK transmission; bandwidth; bandwidth expansion; biorthogonal coding; capacity; channels; error rate; optimum coding; power; wideband TDMA digital mobile radio cellular schemes;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850840
